Glaciers in retreat
A Patagonian gull (Chroicocephalus maculipennis) flies over the Perito Moreno Glacier in southern Argentina. Glacier retreat causes extensive changes to glacier-fed biota across marine, freshwater and terrestrial systems worldwide. This will impact the structure of aquatic food webs, with potentially significant consequences for predators such as fish, mammals and birds. As generalist feeders, gulls should be able to adapt to these changes.
See Cauvy-Fraunié & Dangles